SEW-Eurodrive DRC.-..-DBC series Betriebsanleitung Seite 48

Elektrische Installation
5
Installationsvorschriften
Branch circuit protection
Motor overload protection
Ambient temperature
Wiring diagrams
48
Betriebsanleitung – DRC.-..-DBC
DRC3/4
Suitable for use on a circuit capable of delivering not more than 5,000 rms symmetri-
cal amperes when protected by 600 V non-semiconductor fuses or 500 V minimum in-
verse time circuit breakers.
• DRC.., the max. voltage is limited to 500 V.
DRC1/2/3/4
Suitable for motor group installation on a circuit capable of delivering not more than
5,000 rms symmetrical amperes when protected by maximum 40 A, 600 V non-semi-
conductor fuses or 500 V minimum 40 A maximum inverse time circuit breaker with an
interrupting rating of 5 kA minimum.
• DRC.., the max. voltage is limited to 500 V.
Integral solid state short circuit protection does not provide branch circuit protection.
Branch circuit protection must be provided in accordance with the National Electrical
Code and any additional local codes.
The table below list the permitted maximum branch circuit protection:
Series
DRC..
DRC.. is provided with load and speed-sensitive overload protection and thermal me-
mory retention upon shutdown or power loss.
The trip current is adjusted to 150% of the rated motor current.
DRC.. is suitable for an ambient temperature of 40 °C, max. 60 °C with derated output
current. To determine the output current rating at temperatures above 40 °C, the out-
put current should be derated by 3.0% per K between 40 °C and 60 °C.
An additional speed-dependent derating may be required. For details, refer to chapter
"Technical data and dimension sheets".
For wiring diagrams, refer to chapter "Electrical installation".
Non-semiconductor
fuses
40 A/600 V
Inverse time
circuit breakers
500 V minimum/
40 A maximum